JEE Mains Physics 2002-2019 Solved Video Solutions
In the determination of Young’s modulus (Y=4MLgπld2) by using Searle’s method, a wire of length L = 2m and diameter d = 0.5 mm is used. For a load M = 2.5 kg, an extension / = 0.25 mm in the length of the wire is observed. Quantities d and I are measured using a screw gauge and a micrometer, respectively. They have the same pitch of 0.5 mm. The number of divisions on their circular scale is 100. The contributions to the maximum probable error of the Y measurement is
09
Feb
In the determination of Young’s modulus (Y=4MLgπld2) by using Searle’s method, a wire of length L = 2m and diameter d = 0.5 mm is used. For a load M = 2.5 kg, an extension / = 0.25 mm in the length of the wire is observed. Quantities d and I are measured using a [...]
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a wire of length L = 2m and diameter d = 0.5 mm is used. For a load M = 2.5 kg ,
an extension / = 0.25 mm in the length of the wire is observed. Quantities d and I are measured using a screw gauge and a micrometer ,
In the determination of Young's modulus (Y=4MLgπld2) by using Searle's method ,
respectively. They have the same pitch of 0.5 mm. The number of divisions on their circular scale is 100. The contributions to the maximum probable error of the Y measurement is ,
A vernier calipers has 1mm marks on the main scale . it has 20 equal division on the vernier scale which match with 16 main scale divisions. For this vernier calipers ,the least count is
09
Feb
A vernier calipers has 1mm marks on the main scale . it has 20 equal division on the vernier scale which match with 16 main scale divisions. For this vernier calipers ,the least count is A vernier calipers has 1mm marks on the main scale . it has 20 equal division on the vernier scale [...]
The circular scale of a screw guage has 50 divisions and pitch of 0.5 mm.Find the diameter of sphere.Main scale reading is 2.
09
Feb
The circular scale of a screw guage has 50 divisions and pitch of 0.5 mm.Find the diameter of sphere.Main scale reading is 2. The circular scale of a screw guage has 50 divisions and pitch of 0.5 mm.Find the diameter of sphere.Main scale reading is 2. February 9, 2021 Category: Chapter 5 - Rotational Motion [...]
Whih of the following sets have different dimensions ? (a) pressure, young’s modulus, stress (b) Emf , potential ,difference ,Electric potential (c) Heat,work done, energy
09
Feb
Whih of the following sets have different dimensions ? (a) pressure, young’s modulus, stress (b) Emf , potential ,difference ,Electric potential (c) Heat,work done, energy difference Electric potential (c) Heat energy potential stress b. Emf Whih of the following sets have different dimensions ? (a) pressure work done Young's modulus February 9, 2021 Category: Chapter [...]
In the relation P=αβeαZkθ, P is pressure, Z is height, k is Boltzmann constant and θ is the temperature. Find the dimensions of α and β
09
Feb
In the relation P=αβeαZkθ, P is pressure, Z is height, k is Boltzmann constant and θ is the temperature. Find the dimensions of α and β In the relation P=αβeαZkθ k is Boltzmann constant and θ is the temperature. Find the dimensions of α and β P is pressure Z is height February 9, 2021 [...]
A wire has a mass (0.3 ± 0.003)g, radius (0.5 ± 0.005)mm and length (6 ± 0.06)cm. The maximum percentage error in the measurement of its density is –
09
Feb
A wire has a mass (0.3 ± 0.003)g, radius (0.5 ± 0.005)mm and length (6 ± 0.06)cm. The maximum percentage error in the measurement of its density is – A wire has a mass (0.3 ± 0.003)g radius (0.5 ± 0.005)mm and length (6 ± 0.06)cm. The maximum percentage error in the measurement of its [...]
A cube has a side of length 1.2* 10^2 m. Calculate its volume. (a) 1.7 * 10^-6 m^3 (b) 1.73 * 10^-6 m^3 (c) 1.7 *10^6 m^3 (d) 1.732 * 10^-6 m^3
09
Feb
A cube has a side of length 1.2* 10^2 m. Calculate its volume. (a) 1.7 * 10^-6 m^3 (b) 1.73 * 10^-6 m^3 (c) 1.7 *10^6 m^3 (d) 1.732 * 10^-6 m^3 A cube has a side of length 1.2* 10^2 m. Calculate its volume. (a) 1.7 * 10^-6 m^3 (b) 1.73 * 10^-6 m^3 [...]
A quantity X is given by E0 L deltaV/ delta t ,where E0 is the permitivity of free space ,L is a length ,deltaV is a potentioal difference and deltat is a time interval .The dimensional formula for X is the same as that of
09
Feb
A quantity X is given by E0 L deltaV/ delta t ,where E0 is the permitivity of free space ,L is a length ,deltaV is a potentioal difference and deltat is a time interval .The dimensional formula for X is the same as that of A quantity X is given by E0 L deltaV/ delta [...]
The dimensions of 1/2Enote E^2 (Enote : permitivity of free space ;E : electric field) is (a) [MLT^-1] (b) [ML^2T^-2] (c) [MLT^-2] (d) [ML^2 T^-1]
09
Feb
The dimensions of 1/2Enote E^2 (Enote : permitivity of free space ;E : electric field) is (a) [MLT^-1] (b) [ML^2T^-2] (c) [MLT^-2] (d) [ML^2 T^-1] The dimensions of 1/2Enote E^2 (Enote : permitivity of free space ;E : electric field) is (a) [MLT^-1] (b) [ML^2T^-2] (c) [MLT^-2] (d) [ML^2 T^-1] February 9, 2021 Category: Chapter [...]
In the formula X =3YZ^2 , X and Z have dimensions of capacitance and magnetic indection , respectively . What are the dimensions of Y in MKSQ system?
09
Feb
In the formula X =3YZ^2 , X and Z have dimensions of capacitance and magnetic indection , respectively . What are the dimensions of Y in MKSQ system? In the formula X = 3YZ^2 respectively . What are the dimensions of Y in MKSQ system? X and Z have dimensions of capacitance and magnetic indection [...]